Patents by Inventor Christopher G. Oliveri
Christopher G. Oliveri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230382827Abstract: A process for producing a mono-alkylated benzene comprises contacting benzene with di-alkylated benzene(s) and/or tri-alkylated benzene(s) in the presence of a transalkylation catalyst composition under transalkylation conditions to convert at least part of the di-alkylated benzene(s) and tri-alkylated benzene(s) to mono-alkylated benzene. The transalkylation catalyst composition comprises a treated zeolitic material having increased mesoporous surface area compared to the precursor catalyst composition from which it is made.Type: ApplicationFiled: September 30, 2021Publication date: November 30, 2023Inventors: Aaron W. Peters, Reuben J. Britto, William J. Knaeble, Ivy D. Johnson, Christopher G. Oliveri
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Patent number: 11827593Abstract: A process for producing a monoalkylated benzene comprises contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the catalyst composition comprises a metallosilicate zeolite comprising openings defined by 14-membered rings of tetrahedrally coordinated atoms and the transalkylation conditions include a temperature in the range of 160° C. to 220° C.Type: GrantFiled: September 16, 2020Date of Patent: November 28, 2023Assignee: ExxonMobil Chemicals Patents Inc.Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
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Patent number: 11820723Abstract: A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.Type: GrantFiled: September 16, 2020Date of Patent: November 21, 2023Assignee: ExxonMobil Chemicals Patents Inc.Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
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Publication number: 20220371972Abstract: A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.Type: ApplicationFiled: September 16, 2020Publication date: November 24, 2022Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
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Publication number: 20220356132Abstract: A process for producing a monoalkylated benzene comprises contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the catalyst composition comprises a metallosilicate zeolite comprising openings defined by 14-membered rings of tetrahedrally coordinated atoms and the transalkylation conditions include a temperature in the range of 160° C. to 220° C.Type: ApplicationFiled: September 16, 2020Publication date: November 10, 2022Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
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Publication number: 20200385322Abstract: The present disclosure relates to a process for producing a mono-alkylated aromatic compound, such as, for example, ethylbenzene or cumene, in which an alkylatable aromatic compound stream, such as, for example, benzene, and an alkylation agent stream, such as, for example, poly-ethylbenzene or poly-isopropylbenzene, are contacted in the presence of a transalkylation catalyst and under at least partial liquid phase transalkylation conditions. The transalkylation catalyst comprises a zeolite having a framework structure selected from the group consisting of FAU, BEA*, MOR, MWW and mixtures thereof. The zeolite has a silica-alumina molar ratio in a range of 10 to 15. The transalkylation catalyst composition has an external surface area/volume ratio in the range of 30 cm?1 to 85 cm?1.Type: ApplicationFiled: December 15, 2017Publication date: December 10, 2020Inventors: Brett T. Loveless, Jean W. Beeckman, Christopher G. Oliveri, Scott J. Weigel, Matthew S. Ide, Theresa A. Baumrucker
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Patent number: 9598651Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants. The integrated process includes an initial dewaxing of a feed under sour conditions, optional hydrocracking of the dewaxed feed, and a separation to form a first diesel product and a bottoms fraction. The bottoms fraction is then exposed to additional hydrocracking and dewaxing to form a second diesel product and optionally a lubricant base oil product. Alternatively, a feedstock can be hydrotreated, fractionated, dewaxed, and then hydrocracked to form a diesel fuel and a dewaxed, hydrocracked bottoms fraction that is optionally suitable for use as a lubricant base oil.Type: GrantFiled: February 11, 2015Date of Patent: March 21, 2017Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Krista M. Prentice, Michel Daage, Ajit B. Dandekar, Christopher G. Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
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Patent number: 9415385Abstract: Methods are provided for liquid phase activation of dewaxing and/or hydrofinishing catalysts that include a molecular sieve or other acidic crystalline support. The methods are compatible with activating the catalysts as part of a catalyst system that also includes a hydrotreating catalyst.Type: GrantFiled: November 15, 2012Date of Patent: August 16, 2016Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Terry E. Helton, Benjamin S. Umansky, William J. Tracy, III, Stephen J. McCarthy, Timothy L. Hilbert, Mohan Kalyanaraman, Christopher G. Oliveri
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Patent number: 9309472Abstract: Methods are provided for improving the yield of distillate products from hydroprocessing of gas oil feedstocks, such as vacuum gas oils. It has been unexpectedly found that stripping of gases or fractionation to separate out a distillate fraction during initial hydrotreatment of a feed can provide a substantial increase in distillate yield at a desired amount of feedstock conversion. The improvement in yield of distillate products can allow a desired level of conversion to be performed on a feedstock for generating lubricating base oil products while reducing or minimizing the amount of naphtha (or lower) boiling range products. Alternatively, the improvement in yield of distillate products can correspond to an improved yield during a single pass through a reaction system, so that distillate yield is increased even though a lubricant boiling range product is not generated.Type: GrantFiled: November 14, 2014Date of Patent: April 12, 2016Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Rohit Vijay, Ajit Bhaskar Dandekar, Michel Daage, Christopher G. Oliveri, Christine Nicole Elia, Darryl Donald Lacy, Scott J. Weigel, Bradley R. Fingland
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Publication number: 20150218466Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants. The integrated process includes an initial dewaxing of a feed under sour conditions, optional hydrocracking of the dewaxed feed, and a separation to form a first diesel product and a bottoms fraction. The bottoms fraction is then exposed to additional hydrocracking and dewaxing to form a second diesel product and optionally a lubricant base oil product. Alternatively, a feedstock can be hydrotreated, fractionated, dewaxed, and then hydrocracked to form a diesel fuel and a dewaxed, hydrocracked bottoms fraction that is optionally suitable for use as a lubricant base oil.Type: ApplicationFiled: February 11, 2015Publication date: August 6, 2015Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Krista M. Prentice, Michel Daage, Ajit B. Dandekar, Christopher G. Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
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Publication number: 20150152343Abstract: Methods are provided for improving the yield of distillate products from hydroprocessing of gas oil feedstocks, such as vacuum gas oils. It has been unexpectedly found that stripping of gases or fractionation to separate out a distillate fraction during initial hydrotreatment of a feed can provide a substantial increase in distillate yield at a desired amount of feedstock conversion. The improvement in yield of distillate products can allow a desired level of conversion to be performed on a feedstock for generating lubricating base oil products while reducing or minimizing the amount of naphtha (or lower) boiling range products. Alternatively, the improvement in yield of distillate products can correspond to an improved yield during a single pass through a reaction system, so that distillate yield is increased even though a lubricant boiling range product is not generated.Type: ApplicationFiled: November 14, 2014Publication date: June 4, 2015Applicant: ExxonMobil Research and Engineering CompanyInventors: Rohit VIJAY, Ajit Bhaskar DANDEKAR, Michel DAAGE, Christopher G. OLIVERI, Christine Nicole ELIA, Darryl Donald LACY, Scott J. WEIGEL, Bradley R. FINGLAND
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Publication number: 20150025283Abstract: The invention is directed to a multimetallic catalyst and its use in a reactor system in a C9+ aromatics conversion process in order to reduce the saturation of aromatic species, reduce the production of C6+ non-aromatics byproducts, and achieve higher benzene purity. The multimetallic catalyst exhibits improved selectivity towards aromatic hydrocarbons in comparison to a traditional Pt/ZSM-5 catalyst and comprises ZSM-5, a Group 6-10 metal, and an additional metal not in Group 6-10. The C9+ aromatics conversion reactor system comprises a top bed containing the multimetallic catalyst for dealkylation of ethyl and propyl side chains, a second bed containing a catalyst comprising a hydrogenation component for transalkylation, and an optional third bed containing a catalyst without a hydrogenation component to convert non-aromatic hydrocarbons to gas products.Type: ApplicationFiled: June 23, 2014Publication date: January 22, 2015Inventors: Jane C. Cheng, Christopher G. Oliveri
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Patent number: 8932454Abstract: This invention relates to the composition, method of making and use of a hydrocracking catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 ? (angstrom) range as determined by nitrogen adsorption measurements. The hydrocracking catalysts of invention exhibit improved distillate yield and selectivity as well as improved conversions at lower temperatures than conventional hydrocracking catalysts containing Y zeolites. The hydrocracking catalysts herein are particularly useful in the hydrocracking processes as disclosed herein, particularly for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms and an associated maximization and/or improved selectivity of the distillate yield obtained from such hydrocracking processes.Type: GrantFiled: December 19, 2012Date of Patent: January 13, 2015Assignee: ExxonMobile Research and Engineering Co.Inventors: Jianxin Jason Wu, Ajit B. Dandekar, Christopher G. Oliveri
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Patent number: 8778171Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.Type: GrantFiled: March 6, 2012Date of Patent: July 15, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Christopher G. Oliveri, Wenyih Frank Lai, Ajit B. Dandekar, Scott J. Weigel, Jason Wu, Robert E. Kay
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Patent number: 8729330Abstract: Non-hydrotreated biocomponent feeds can be mixed with mineral feeds and processed under catalytic isomerization/dewaxing conditions. The catalytic isomerization/dewaxing conditions can be selected to advantageously also substantially deoxygenate the mixed feed. Diesel fuel products with improved cold flow properties can be produced.Type: GrantFiled: March 9, 2011Date of Patent: May 20, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
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Patent number: 8674160Abstract: Feeds containing a hydrotreated biocomponent portion, and optionally a mineral portion, can be processed under catalytic conditions for isomerization and/or dewaxing. The sulfur content of the feed for dewaxing can be selected based on the hydrogenation metal used for the catalyst. Diesel fuel products with improved cold flow properties can be produced.Type: GrantFiled: March 9, 2011Date of Patent: March 18, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
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Publication number: 20130026070Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.Type: ApplicationFiled: March 6, 2012Publication date: January 31, 2013Applicant: ExxonMobil Research and Engineering CompanyInventors: Christopher G. Oliveri, Wenyih Frank Lai, Ajit B. Dandekar, Scott J. Weigel, Jason Wu, Robert E. Kay
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Publication number: 20110219671Abstract: Feeds containing a hydrotreated biocomponent portion, and optionally a mineral portion, can be processed under catalytic conditions for isomerization and/or dewaxing. The sulfur content of the feed for dewaxing can be selected based on the hydrogenation metal used for the catalyst. Diesel fuel products with improved cold flow properties can be produced.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
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Publication number: 20110219669Abstract: Non-hydrotreated biocomponent feeds can be mixed with mineral feeds and processed under catalytic isomerization/dewaxing conditions. The catalytic isomerization/dewaxing conditions can be selected to advantageously also substantially deoxygenate the mixed feed. Diesel fuel products with improved cold flow properties can be produced.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: ExxonMobil Research and Engineering CompanyInventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
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Publication number: 20100176027Abstract: An integrated process for producing diesel fuel from feedstocks, including diesel fuel production under sour conditions, is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. In addition to the benefits in sour service, the process also returns to clean service activity levels more quickly.Type: ApplicationFiled: December 15, 2009Publication date: July 15, 2010Inventors: Christopher G. Oliveri, William J. Novak, Timothy L. Hilbert